Why are some roads called instead of or

You're right, it seems there's a little mix-up in your question! Roads are usually named, not "in-steaded" or "or-ed".

It sounds like you might be thinking about situations where road names have multiple parts, like:

* Street and Avenue: For example, "Main Street and Elm Avenue". This is a way of describing an intersection, not a single road.

* Directional prefixes: For example, "North Main Street" or "West Elm Avenue". These clarify which direction a road runs on a map.

* Road numbers: For example, "Highway 10" or "Route 66". These use numbers to identify a specific road.

If you can give me an example of the kind of road names you're thinking about, I might be able to give you a more specific answer.